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Consider the ElGamal signature scheme. Let Bob’s private key be Kpr = (d) = (67) and the corresponding public key Kpub = (p, α, β) = (97,23,15). Verify if both these messages originated from Bob You receive the following message and signatures (x, r, s) = (22, 37, 33) (x, r, x) = (82, 13, 65)

Consider the ElGamal signature scheme. Let Bob’s private key be Kpr = (d) = (67) and the corresponding public key Kpub = (p, α, β) = (97,23,15). Verify if both these messages originated from Bob You receive the following message and signatures (x, r, s) = (22, 37, 33) (x, r, x) = (82, 13, 65)

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Consider the ElGamal signature scheme. Let Bob’s private key be Kpr = (d) = (67) and the corresponding public key Kpub = (p, α, β) = (97,23,15). Verify if both these messages originated from Bob

  1. You receive the following message and signatures
    1. (x, r, s) = (22, 37, 33)
    2. (x, r, x) = (82, 13, 65)
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